这种想法出现于公元1800年左右，当时人口变得足够多，大约有10亿人，人类的活动开始能够改变环境。
The idea is that around the year 1800 CE the human population became large enough, around a billion people, that its activities started altering the environment.
人类自从在地球上出现以后就开始玩权利游戏。
Man has played the power game ever since he appeared on earth.
当然，这种界定在人类的许多方面都开始出现，从构建设计到火箭科学，到专利权法。
Of course, this dilemma arises in many human endeavors, from building design, to rocket science, to patent law.
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